package type

fun findUniverse(secId: List<String>): Map<String, String> {
    return mapOf()
}


fun findUniverse2(secId: List<SecId>): Map<SecId, Universe> {
    return mapOf()
}

fun getData(ids: String):List<Data> { // 调用者不知ids的具体结构
    val list = ids.split(",")
    return list.map { id -> getFromDb(id) }
}




fun getFromDb(id: String): Data {
    return "data"
}
typealias Universe = String
typealias SecId = String
typealias Data = String